2006 BR284

--Orbital and physical data--

(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)

dynamical type, primary: TNO, Cubewano orbital data, primary (osculating elements) [JPL] : semimajor axis a: 44.0983 AU orbital period P: 292.847 yr (= 106962.2 d) eccentricity e: 0.04558 perihelion distance q: 42.0884 AU aphelion distance Q: 46.1081 AU inclination i: 1.15464° argument of perihelion ω: 104.96° ascending node Ω: 15.389° mean anomaly M: 14.21° perihelion passage TP: 2002 Nov 01 Epoch: 2014 May 23 data arc: 2006-2011 (29 obs.) Earth MOID: 41.1044 AU Jupiter Tisserand invariant TJ: 5.933 Neptune Tisserand invariant TN: 3.10 [*D] orbital data, secondary: semimajor axis as: 25300 ± 300 km [P11a] separation/primary radius as/rp: 560 [*D] separation/Hill radius as/rH: 0.088 [*D] orbital period Ps: 1501 ± 12.8 d [P11a] eccentricity es: 0.28 ± 0.01 [P11a] inclination is: 55.6° ± 1.35° [P11a] ascending node Ωs: 41° ± 2° [P11a] argument of pericenter ωs: 14° ± 1° [P11a] mean anomaly M: 219° ± 1° [P11a] Epoch: 2009 Nov 17.58 normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 6.9 [MPC] 7.3 [P11a] slope parameter G: (0.15) [*A] effective diameter dE: 114 km [*D] geometric albedo: 0.22 ± 0.01/0.01 [P11a] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: 5.7x1017 ± 1.85x1016 kg [P11a] density ρ: (1 g/cm3) [*A] Hill radius rH: 290000 km [*D] other data, primary: diameter dp: 89.8 ± 0.8/1 km [P11a] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 71 ± 1.5/1.5 km [*D] diameter ratio ds/dp: 0.794 ± 0.015 [P11a] component mag. difference ΔM: 0.50 ± 0.04 [P11a] rotation period RPs: ?